| 摘要 |
The invention relates to surfactant-free cosmetic, dermatological and pharmaceutical compositions, comprising at least one copolymer consisting essentially ofa1) 1 to 50% by weight of the repeat structural unit of the formula (1)where n is an integer from 2 to 9, ora2) 1 to 50% by weight of a mixture of the repeat structural unit of the formula (1) and the repeat structural unit of the formula (2)where R, R<1 >and R<2 >may be identical or different and are hydrogen or a linear or branched alkyl or alkenyl group having in each case 1 to 30 carbon atoms andb) 49.99 to 98.99% by weight of the repeat structural unit of the formula (3)in which R<3 >is hydrogen, methyl or ethyl, Z is (C1-C8)-alkylene, n is an integer from 2 to 9 and X is an ammonium, alkali metal or alkaline earth metal ion andc) 0.01 to 8% by weight of crosslinking structures which originate from monomers having at least two olefinic double bonds.
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